Oak cased lacquered brass and steel instrument, the steel bar is caused to oscillate by the electro magnet make and break contact, the motion is adjustable from a slow ponderous tick toc action to a murmuring fast vibration.

The power of the shock ranges from tolerable to causing loud screaming, adjustments are made with the rocking bar, four different contacts on the back of the coil and the coil can slide in and out of the iron core.

Setting up/wiring is achieved with screwed terminals. Works with any six to nine volt battery, the connection as appropriate, the large power pack battery shown with wires twisted and taped.

Marked on the ivorine plate

The PHYSIO APPARATUS

MEDICAL SUPPLY ASSOCIATION Ltd

167-185 GRAYS INN Rd. LONDON

In excellent condition with no damage or repair, some light spots of rust on the rocking steel bar.

Length of the box 14,1/4" or 365mm, weight 3.9 kilos.

Supplied with battery ready to run.

Guaranteed old and original.

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A shipping discount will be given on combined purchases where weight and value permit.

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on items, not classed as 'valuables' by Royal Mail, selling for less than £50.00

£2.50 discount to UKbuyers (first class recorded delivery)

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